The Shelby High School junior, who has been missing since Sept. 29, hasn't contacted family or friends in the six days she's been gone and authorities are actively trying to locate her, said Oceana County Sheriff Bob Farber.

“We're really looking into all the avenues out there,” Farber said. “We're getting calls like crazy. We're just trying to make sure we're doing what we need to do to find her.”

While Gallop, of New Era, is considered a “runaway” at this point, her family would still like to get in contact with her to be sure she's not in any danger.

The brown-haired, hazel teen was last seen at the Shelby High School after her father, Jeremy Gallop, had dropped her off, according to her mother, Rhonda Gallop.

But when they learned the teen hadn't attended school that day, authorities were called and an investigation began, Farber said.

Shelby Public Schools Superintendent Scott Lund said the community is “very concerned” at this point.

Lund said there are “a lot of questions” involved with Gallop's disappearance, but he hopes they get answers soon. He described Gallop as a good student who was not known to cause "trouble."

Lund said he heard Gallop left her home voluntarily because she had some disagreements with her parents.

“We're very concerned for her and her family. We would hope that she makes contact by phone or some way with her mother to let her know she's OK. We hope for whatever reason she wanted to leave, that they can work it out,” Lund said.

School officials have been working with the Shelby Police Department and have been relaying any information they can garnish from students to authorities.

“We're letting the police know everything we hear,” Lund said.

Farber said authorities don't believe there is “foul play” involved and an Amber Alert hasn't been issued because it isn't believed Gallop is in immediate danger.

Family and friends have started a “BRING BECCA HOME” Facebook page that had more than 2,200 fans on it late Wednesday. The page includes messages to Gallop, urging her to come home, contact her family and others wrote prayers for her well-being.

Farber is urging the public to call authorities with any information on her whereabouts at (231) 873-2121 during business hours or (231) 869-5858 after 5 p.m.

Gallop is described as 5 feet 7 inches tall, weighing around 115 pounds.